#include <stdlib.h>
#include <signal.h>
#include "header.h"

static void sig_usr(int);

int
main(void){
    if(signal(SIGUSR1, sig_usr) == SIG_ERR)
        err_sys("can't catch SIGUSR1");
    if(signal(SIGUSR2, sig_usr) == SIG_ERR)
        err_sys("can't catch SIGUSR2");

    for(;;)
        pause();
}

static void
sig_usr(int signo){
    if(signo == SIGUSR1)    
        printf("received SIGUSR1\n");
    else if(signo == SIGUSR2)
        printf("received SIGUSR2\n");
    else
        err_dump("received signal %d\n", signo);

    return;
}
